CVE-2022-35961 in Contracts

Resumen (Inglés)

OpenZeppelin Contracts is a library for secure smart contract development. The functions `ECDSA.recover` and `ECDSA.tryRecover` are vulnerable to a kind of signature malleability due to accepting EIP-2098 compact signatures in addition to the traditional 65 byte signature format. This is only an issue for the functions that take a single `bytes` argument, and not the functions that take `r, v, s` or `r, vs` as separate arguments. The potentially affected contracts are those that implement signature reuse or replay protection by marking the signature itself as used rather than the signed message or a nonce included in it. A user may take a signature that has already been submitted, submit it again in a different form, and bypass this protection. The issue has been patched in 4.7.3.

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Responsable

GitHub, Inc.

Reservar

2022-07-15

Divulgación

2022-08-15

Estado

Confirmado

Voces

VulDB provides additional information and datapoints for this CVE:

ID	Vulnerabilidad	CWE	Exp	Con	CVE
206420	OpenZeppelin Contracts Signature ECDSA.tryRecover escalada de privilegios	354	No está definido	Arreglo oficial	CVE-2022-35961

Fuentes

• MITRE
• NVD
• CVE Details